Jack.



0. B. MUELLER JACK.

APPLICATION FILED MAY 18, 1909.

Patented Mar. 15, 1910.

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DSCAR- B. MUELLER, OF NEW ROCHELLE, NEW YORK, ASSIGNOR T0 NATIONAL WATERMAIN CLEANING COMPANY, A CORPORATION OF MAINE.

JACK.

Specification of Letters Patent.

Patented Mar. 15, 15110.

Application filed May 18, 1909. Serial No. 496,826.

To all whom it may concern:

Be it known that I, Oscar B. MUELLER, a citizen of the United States,and a resident of New Rochelle, county of VVestchester, and State of NewYork, have invented certain new and useful Improvements in Jacks, ofwhich the following is a specification.

My invention relates to improvements in jacks and is particularlyadapted for use in connection with pipes into which it is desired toforce cleaning devices, etc.

In the drawings, I have shown a preferred form of my jack adapted foruse in connection with pipe cleaning devices, in which Figure 1represents my improved jack in position. Fig. 2 represents a View ofFig. 1 from the right, and Fig. 3 represents a View from the left ofFig. 1, showing my improved jack.

In the drawings, A represents the bedplate of the jack having a lug A,through which bed-plate A the screw B is adapted to pass back and forthby rotation of the screw. In conjunction with this form of my jack Ipreferably use a pipe fitting in which on the inner diameter of thelower part of the pipe there is an opening E into which the adjustablepin or lug D of the bed-plate A is adapted to rest. In the preferredform of my invention, as shown in the drawings, I use a pipe fittingprovided with an opening extending through half of its circumference, ofsufiieient length to introduce the jack and such other device as Idesire, to feed into the pipe line by means of the jack. The pipefitting may be either a permanent part of the pipe line or a portion ofthe pipe line may be removed and the pipe fitting inserted. Where thefitting is a permanent part of the pipe line, I provide a suitable coverfor the opening, so that fluid will pass through the pipe withoutescaping through the opening. At the top of the fitting I provide ashoulder H. On the under side of the bed A of the jack I also providelugs A and A the object of lug A being to hold the bed-plate frommovement so that the adjustable pin D is prevented from coming out ofthe slot or cavity E. The lug A has at its farther end an openingthrough which the set screw F is adapted to pass so that when thebed-plate is in position, as shown in Fig. 1, and the set screw Fscrewed into the position shown the bed-plate A is immovable withrelation to the pipe fitting G. At the outer or upper end of the screw BI provide the square or rectangular portion B, the object of which is topermit of theuse of a wrench as a means for rotating the screw B. At theupper end of the screw B I provide the head B which may be of anydesired shape but which in the drawings I have shown round. This head Bmay be used either with or without the ordinary cap, commonly used withjacks, as desired. Mounted in the lug A on the bottom part of thebed-plate I provide two adjustable screws I, I which in conjunction withthe adjustable stud or pin D permits the adjustment of the bed-plate fordifferent sizes of pipe.

The operation of my improved jack is as follows: When the jack has beenadjusted to fit, and placed in the pipe or pipe fitting, as shown, thepipe cleaning device or similar apparatus which it is desired to insertwithin the adjacent section of pipe is placed in front of the head B andby means of a wrench mounted on the rectangular portion B of the screwB, the screw is rotated so as to force forward the head B therebypushing the apparatus or cleaning device into the pipe section asdesired.

In the drawings, I have shown the preferred form of my invention but Ido not wish to be limited to the specific form shown as manymodifications and changes might be made without departing therefrom.

What I claim as new and desire to secure by Letters Patent, is:

1. In a jack, a bed-plate, means for holding said bed-plate in position,a movable member adapted to move substantially parallel to a pipe, andmeans for moving said member in relation to the bed-plate.

2. In a jack, a bed-plate, means for holding said bed-plate within apipe fitting, a movable member for said jack, and means for moving saidmember.

3. In a pipe fitting, a jack, a bed, means for holding said bed inposition within said fitting, and a movable member for said jack.

4. In a pipe fitting, an opening therein, a jack the movable memberthereof adapted to move substantially parallel to the pipe, and meansfor holding said jack in position.

5. In a pipe fitting, a jack the movable member thereof adapted to movesubstantially parallel to the pipe, and means for holding said jack inposition.

6. In a pipe fitting, a bed-plate at an angle thereto, a movable memberconnected therewith adapted to move substantially parallel to the pipe,and means for moving said member.

7. In jack, a bed-plate adapted to be ad justed to fit different sizes01' pipe, means for holding said bed-plate Within a pipe fitting, amovable member for said jack, and means for moving said member.

8. In a jack, an adjustable bed-plate adapted to be adjusted to varioussizes of pipe, and means for holding said bed-plate within a pipe.

9. In a pipe fitting, a jack, an adjustable bed, means for holding saidbed within said fitting, and a movable member for said aek.

1Q. I11 a pi e fitting, a jack, means located Within the pipe forholding said jack in position.

11. In a jack, a bed-plate adapted to be fitted to various sizes ofpipe, a movable member for said jack adapted to move substantiallyparallel to said pipe, and means for moving same.

12. In a jack, a bed-plate, a movable member for said jack, means foradapting said bed-plate to fit various sizes of pipe, so that saidmovable member may be retained in the center of said pipe.

18. In a ack, a bed-plate, a movable member for said jack, meansconnected With said bed-plate for holding same Within pipes of differentsize bore.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing Witnesses.

OSCAR B. MUELLER.

itnesses CLINTON INGLEE, J os. L. PIERCE.

